Hinge for loose-leaf-book covers



Jan. 1, 1929. l 1,697,634

' R. J. coPELAND HINGE FOR LOOSE LEAF BOOK COVERS Filed Oct. 25. 1922 Patented dan. l, 1929.

y 1 'irre RGBERT J. GOPELAND, orrORoNfro, ONTARIO, cartera. v

HINGE non noosnrnanecon ocvnns.

Application filed October 2k3, 1922. Serial` No. 596,3?97. f

The principal objects of the invention are to provide a simple, strong and durable form of hinge connection for loose le'af binders which will present a good appearance and will enable manufacture at low cost.

The principal feat-ure of the invention consists in providing a pivotal strap hinge con- Y nection between the back an'd cover, the

looped strap members secured to one memberV tail of a further modification of the back structure. v l

, Figure 4 is a sectional perspective detailV of a still further modification.

In the construction .of certain types of loose leaf binders, the Back l which supports the binder posts or contains the binder lock is usually made of pressed sheet metalv in substantially rectangular form having the back and front ledgesrounded and it has been Vthe custom to cover these with a suitable strong flexible fabric, the longitudinal edges of which are bound in the cover structure 2 and the fabric 'extending between the back and cover forming the hinge.

The present invention proposes the use of narrow strips of metal 3, to be doubled and ysecured by rivets or other suitable means, preferably to the cover, so that the looped portion 4 projects beyond the member to which it is attached.4 Y

The other member is formed with a proljecting tongue 5 in which `are formed the slots 6. The straps 3 are inserted through these slots beforebeing attached to the other member.

v In the form of the inventionillustrated in Figure l the sheet metalback l is formed 'f up with the edge strip 7 projecting midway of the thickness of the back and the other Vedge ,is lapped around it, thus fastening the` edges securely and providing a tongue'of three thicknesses of metal.y The slots 6 are punched through-this projecting tongue and the straps 3 are then insertedV and the cover is secured thereto.

Itmay 'be found' vdesirable to form the backs l in the usualmanner and then 1 place bands of sheet metal around them as illustratedin Figure 2, the bands` having their meeting edges formed similar tothe tongue 5.l Between these bands, the back may be covered with leather or fabric which will protect desks from metal. y When the full length strip is usedy as shown VinFigure l the tongue. 5 may be provided with notches 8 andbandsof a suitablecushion material arranged to encircle the back, such bands being held in place by the notches.

`The backl may be formed. in many different ways. The form illustrated in Figure 4l shows two strips of metal placed togetherl with projecting strips 9 forming the hinge tongue.

In the form illustratedin Figure ,3, the back is of the ordinary form andaround this is placed a strip of fabric 10. V'Ihe edges are lapped in a manner similar tothe sheet metal. previously described and a strip ofy wire 1l is enclosed. Over the composite strip isin-VV serted a U-shaped metal strip 12 which yis pressed around the wire and clamps the fabric. The metal strip and the enclosed fabric isslotted the .same as the other formsto re-` ceive the hinge straps 8.

Vbeing marked by the -Fro1n vthis description it will be--readily un-derstood that. the invention may be applied in many different forms and if desired the hinge straps may form part of the back structure and b e connected to a slotted cover without departing fromthe spirit of the inl vention.

- What I claim as my inventiony is yl l. A hinge for loose leaf covers, compris# ling a binder back having a tongue formed of flat sheet strips extending longitudinally throughoutthe length thereof, said tongue v having a plurality of spacedv rectangular slots punchedk therethrough, and U-shaped flat metal straps threaded through said slots` and having their ends embracing the cover Vand rigidly secured thereto.

2. A hinge for loose leaf covers, compris- .ing anbinder back formed ofa sheetof kmetal bent longitudinally into al closedV tubular form having the free edgesoverlapped and forming a longltudinalliattened; tongue eX- j .Y tending outwardly from one edgeofthe tube, y I A longitudinallyl aligned slots" cut inv said tongue lea-ving a continuous outer edge, and'` i 3 U-shaped fiat-metal straps inserted through y said slots` and having their ends secured to the cover.

3. A hinge for loose leaf covers, comprising a binderbaok having edge flanges extending outwardly therefrom in overlapped reslots extending through said metal strip and 10 i i' enclosed edge flanges leaving said outer bead-f ed portion intact, an-d looped metal strips threaded through said slotsv and retained therein by Said intact beaded portion and being secured rigidly to the cover at its free 15 ends.

ROBERT J. COPELAND. p 

